Oil-burning-furnace front



J. REID.

0H. BURNING FURNACE FRONT.

APPLICATION msn MAR.8,1920.

@amm @i w21.

2 SHEETS-SHFET l.

OIL BURNING FURNACE FRONT.

APPLICATION FILED MAB. 8. 1920.

lf. Famed Apr. I2, Im.

2 SHEETS-SHEET 2.

l Il! llllll l l unirse sraiis eosin anni, or NEW Yoan, N. Y.

Massimino-renuncia racism.

l Lacasse.

Application med Marone, 1920.

T 0 all whom 'it may concern.'

Be it known that I, JOHN Rino, a subject of the King of Great Britain, and residing at 30 Church street, in the city of New 5 York, in the State of New York, in the United States of America, have invented a new and useful Oil-.Burning-Furnace Front, of which the following is the speclficatlon.

The invention relates to oil burning furnace fronts, as described in the present specification and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially of the novel construction of the parts pertaining to the air circulation, whereby the firebox lining of the frontwall is maintained in comparatively cool condition and the iame fed with air at a comparatively high temperature.

The objects of the invention are, primarily, to promote the combustion of the oil and preserve the furnace front from dainage due to' excessive heat; also to simplify the construction' and assembly of furnace fronts, particularly in the matters of installation and repairs; also to increase the facilities for the air circulation by either forced draft or natural draft; and generally to provide in a furnace front parts of a very durable nature-and so combined as to materially assist in maintaining an eiiicient steam generating plant.

In the drawings, Figure 1 is a vertical sectional view, showing one forni of the invention.

Fig. '2 is a front elevation of the back.

plate, showing the arrangement of the in- 'termediate dotted lines. y

Fig. 3 is a vertical sectional View of al slightly modified form of the invention.

Fig. 4 is' a rear elevation of the back pla-te of the form of the invention illustr'ated in Fig. 3. i

Fig. 5 is a vertical sectional view of another modification 4of the invention.

Fig. G is a fragmentary view of the front plate, showing the swinging door carrying the oil burner and parts.

Like numerals of reference iadicatecorresponding parts, in the several differentl '4 forms of the invention respectively.

Specification of Letters Patent.

parts and the furnace lining in Serial No. 364,342.

Referring to the drawings, and particularly to Figs. 1 and 2, the front plate 'is formed with the central opening 2, from' which projects the lid flange 3, the latter being preferably separate from the front plate and rigidly secured thereto around said opening 2. The lid 4 meets the inturned outer end of the flange 3 by means of the annular' flange 5 projecting therefrom, and is formed with the central boss 6, which carries the sleeve 7 forming part of "the oil burning apparatus. The set screw 8 securessaid sleeve rigidly to the boss 6 and the lid lining 9.is secured to the inner Patentes apr. 12, 1921.

side of the lid and spaced therefrom by the bolts 10.4

The oil pipe 11 extends through the sleeve Z and terminates in the burner 12 and at the end around said burner; the inner cone deflector 13 is carried by the sleeve 7. The outer cone deflector 14 is supported .from the hub 1'5 rigidly .secured to the sleeve 7 by the screws 16 by means of the spider 17 and the blades 18 project outwardly from the cone .145 in either a spiral or straight direction from beyond the opening inI the front plate vl inwardly beyond the inner cone delector 13 forming air passages leading to tlieflame projected from said burner 12.'

The-back Aplate 19 is spaced from the.

front plate 1 by the lower arc-shaped wall 2O forming a deflector for the air and corresponding to the flare in furnace front construction, and the wall 21y forming an air oliield :l-nove the opening 2 in the front plate and 22 in the back plate, the air shield 21 being formed with a central valve opening-23, inclined sections leading. to the vertical sections 24 having lower inturned ends 25. The valve 26 closes the valve openflange i29-fro1n said cylinder abutting the 4outer' face of the said back plate and the deflecting flange 30 extending inwardly and converging in the direction of the furnace.

' 38 through which the lair iiows from the chambers 39 formed by said lining tothe flame from the burner, said chambers 39 having the air inlet holes or ports e() through the back plate and dotted here and there in a path aronndfy said back plate in.

front of said lining chambers.

The inner side Walls 37 extend beyond the face plate 35 in the dang s 4 and a bead 42 extends outwardly from tbe inner side Walls of the several pieces in alineinent with the face Walls 35, these beads forming keepers for tbe fire bricks 43 that iorin tliev flame passage into the fireboi: 'Well air deectors at their inner beveied ends 4A- for the'air flowingI out ot the eioneaeii ports 38, which How iirst meets i ing iiange 30 'of the air cylind guided between said fiance 30 an" eled edge iii substantialiy at to the spread of tbe ilamen The fastening of the bricks lo trie nace` lining through the beads is by' means arbitrary, as these bricks cured by angle clips, screws, clamps or any' acceptable means of itastenirrgn The pieces32 and and 34; ot' the lining have also Walls 45, but these are similar to the outside walls 36 and extend to the back plate accordingly. ,The several. lining pieces are fastened to the back plate by the bolts 46, which are secured inthe most suitable manner. l

In Figs. 3 and 4,. tbe construction. is mach the same as in Figs. l and 2, but the piece 34 of the liningl is omitted and. consequently there' is no elongated poi-t 3,5 at the lower side. In this form of the'.` invention, tbe

back plate 47 is made with the central open-- there is also a minor draft opening- The remainder of. the opening is closed by the closure plate 5G and the damper or access door 57,. the latter being;r secured to lthe closure plate 56 by the hinges 58, the lower hinges forming, the hangers for the door 54.

The sleeve 60 extends inwardly -1from the closure plate n5G and encircles the oil pipe sleeve 61, the'latter containing` the oil pipe 62 and the sleeve (3) supporting the cone air deflector 63, which extends toward the 4back plate and enters the air c" air derving tbro'agli tire passage Ythe side valves, it these are used, thong refranes having a dei'iecting' iange 65 sin flange 30.

The lining in 'this form of tbe invention comprises the pieces 6G, G7 and 68, that is to say, top and sides, and these pieces are similarly formed to the pieces 31, 32 and 33 and communicate with the air pocket between the plates by means of the air holes or ports 6C.

in Fig. 5 the air shield T0 is permanent and without a Yave, therefore in the dis tributicn of the air, the cone deiiector 'M which terminates the sleeve 75') and entends beyond the burner T3, extends into proximity with the converging Hang-e 7ao the air cylinder Wbicii is bere shown as 'the air cylinder 75, `is deflected bot-li by the cone 71 and the tiange 7i, and reaches tlie 'iiame Yfrom the burner approximately at a right angle and parallel to tire stream et Y 53 between n and the the eater surface of said iiange ers T3. We!

bricks 77 the iinina elia in' Figi ii, simplu is snor which carries the borner cone deiiector a pipe. 'if iis door may also be used tor rai irait by reir hinge and si t i on the pipe, otherwi e, i is to Saya the dooris hinged, will carry the oil barningr1 equipment with it in opening. course tbe binge may be arranged in. vari ons ways according to the depth ot' the oil, 'ma burning equipment as may be well underM steed by. anyone familiar with such equip ments. j

ln the operation oi? a furnace, tired by oil and baring a front of this ldescription` the space between iront and back forms an air pocket weich is customarily connected to an beater supplied by forced draft sji'stein of circulation. This pocket completely surrounds the air cylin`V 'der andcone'dcliector. which forms a means of guiding the air to the lame. As the air enters the pocket aforesaid, it isnatnraliy deflected by the intermediate Walls afore- A said, the upper wall forming an air shield to avoid too great a draft on the il'ainehat one place, therefore this draft is regulated by an upper valve in some .cases but the n great volume of air flows around this air?Y shield and its iurther flow is controlled by 12e ,l

they are not an absolute` necessity by an means. Thaair continuing to tionY aroun thus becomes distributed completely-aroaoindln the iront and a certain quantityof it flowslli'i through the inlet holes or ports to the lin;

ing cliambers, and there it serves tbe pur pose of coming" the lining pieces; thereby remesa gated ports or divided ports, as the case may be, between the bricks and the outside of the projecting lange'from the air cylinfder and reaches the side of the flame at a comparatively wide angle thereto.

lt will be thus seen, that in this air eirculation the air does not lose any heat from the heater, in fact to a 'large extent the benefit of the Vheater' is minimized, because the 'temperature of the air reaching the flame Y is very much higher than when it left the heater, as for instance, the considerable volume of air which flows in from the lining pieces becomes quite hot in passage, as its 'mission is to cool said lining pieces. This air feeds directly to the flame and nowhere in leaving the lining chambers does it come in contact with anything which might tend to cool it. The larger volume of air in the air pocket between the plates of a furnace front not being distributed therearound,y also becomes hotter and reaches the flame at quite a high temperature.

In another application accompanying this application for a patent, this feature of heating the air in the air pocket is more specifically shown and described, butl on account of the particular construction, 1t must i l be made the subjectpf a separate application, especially as iii many instances the furnace front will be made very lmuch as shown in the accompanying drawings and described in the present specilication, but without departing from the spirit of the invention considerable change may be made lin all the parts thereof and so long as these changes are within the scope of the claims for novelty following, the protection ac- I corded shall not be invalidated.

. burner suitably What I claim is: f

l. ln a furnace front of the forced draft type having front and back plates distanced by intermediate walls and forming air pocket having front and rear openings, a furnace lining attached to` the back plate and forming air chambers having inlets through said hack plate from said pocket and outlets leading to the firebox, and a shut in from the outside to said air pocket and connected to a suitable oil feed and emitting a llame crossing the path of the air delivery.

'2, ln a furnace front of the forced draft tvpe having front and hack plates distanced by intermediate walls and forming an air pocket having front and rear opening and forming a flame ings, a furnace lining attached to the back plate and forming air chambers having inlets through said lback plate from said pocket and outlets leading to the firebox, a burner, an air deilector and an air cylinder shut into said pocket from the outer side,

the latter having a projecting deflector from said cylinder for the air streams.

.3. In a furnace front of the forced draft type having front and back platesdistan'ed by intermediate walls and forming andan' pocket having front and rear openings, a furnace lining attached to the back plate and forming air chambers having inlets through saidback plate from said pocket and outlets leading to the flrebox,

-a burner, an air deflector, an air' cylinder having al converging. flange `projecting into the hrebox and forming an lnner and outer deflecting surface and fire brick associated with vsaid flange in directing the streams of air from the lining chamber to the flame from the burner.

1l. ln a furnace front of the forced draft type having front and back plates distanced byintermediate wallsI and forming an air pocket having front and rear openings, a furnace `lining attached to the hack plate and forming air chambers having inlets through said back plate from said pocket and outlets leading tothe Ilireloox, -a burner, an air deilector, an air cylinder having a converging flange projecting into the firebox and forming an inner and outer deflecting surface, and irebrick secured between the several pieces to said furnace linassage and at the inner ends thereof bevxfed i ff to form with said deflecting and converging flange passages for the air streams flowing into the flame from the burner ata wide angle to the line of spread of said flame.

5. ln a furnace front of the forced draft type having frontv and backfplates dis.- tanced by intermediate walls and forming an air pocket' having freut and rear opens ings, a lining for thtA freut wall of the fireboX formed of several pieces having outer side and end walls yixterfling to the ,said lfront wall or back plate of the front and inner/side walls shortened to form air. outlet passages from the air chambers thus plate `and formed for'natral drabe'ectsg,Qgsidfburnexgland brfcm mngfalfame a closure, for s; 1ower opsningin the bgd;V passage and contrbu'aing toanjfair passggefl passages with .saidl cone', furnace liningf,.oAmeljai'f-- formulg au chambers havlng v1`1'lets`flso111` 

